{"id":19124,"date":"2023-06-16T08:22:47","date_gmt":"2023-06-16T08:22:47","guid":{"rendered":"https:\/\/sygeplanter.dk\/?p=19124"},"modified":"2023-06-16T08:22:49","modified_gmt":"2023-06-16T08:22:49","slug":"lys-pa-en-taget-dag","status":"publish","type":"post","link":"https:\/\/sygeplanter.dk\/lys-pa-en-taget-dag\/","title":{"rendered":"Lys p\u00e5 en t\u00e5get dag"},"content":{"rendered":"\n<p>En t\u00e5get dag, helt stille og lidt vemodig stemning \u2013 r\u00e5koldt, temperatur omkring frysepunktet. Ikke et vejr til drivhuse, og dog, ved 11-tiden var der 19 grader i drivhuset. Hvordan det?<\/p>\n\n\n\n<p>Forklaringen findes p\u00e5 lysm\u00e5leren, der styrer tilskudslyset, den st\u00e5r p\u00e5 samme v\u00e6rdi som i klart solskin. N\u00e5r solen skinner kommer energien koncentreret fra et punkt, i t\u00e5ge og overskyet vejr er lyset diffust, og kommer fra hele himmelfladen. Selv om man ikke opfatter det som st\u00e6rkt lys, er summen af himmelfladen alts\u00e5 n\u00e6sten den samme som i klart solskin.<\/p>\n\n\n\n<p>Da jeg for nogle \u00e5r siden startede p\u00e5 gartneriet&nbsp;<a href=\"https:\/\/web.archive.org\/web\/20200303090824\/http:\/\/www.pkm.dk\/\">PKM<\/a>&nbsp;brugte jeg solen til at kalibrere mine lysm\u00e5lere, ved at koble dem til en datalogger og l\u00e6gge dem udenfor. Var der drivende skyer faldt indstr\u00e5lingen selvf\u00f8lgelig n\u00e5r der gik en sky for solen, men lige f\u00f8r, og efter, steg indstr\u00e5lingen over den normale indstr\u00e5ling. Det var reflektion fra skyen, og det forbavsede mig f\u00f8rste gang, men s\u00e5dan l\u00e6rer man jo hele tiden\u2026.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>En t\u00e5get dag, helt stille og lidt vemodig stemning \u2013 r\u00e5koldt, temperatur omkring frysepunktet. Ikke et vejr til drivhuse, og dog, ved 11-tiden var der 19 grader i drivhuset. Hvordan det? Forklaringen findes p\u00e5 lysm\u00e5leren, der styrer tilskudslyset, den st\u00e5r p\u00e5 samme v\u00e6rdi som i klart solskin. N\u00e5r solen skinner kommer energien koncentreret fra et &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Lys p\u00e5 en t\u00e5get dag\" class=\"read-more button\" href=\"https:\/\/sygeplanter.dk\/lys-pa-en-taget-dag\/#more-19124\" aria-label=\"More on Lys p\u00e5 en t\u00e5get dag\">Read more<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Lys p\u00e5 en t\u00e5get dag - Sygeplanter<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sygeplanter.dk\/lys-pa-en-taget-dag\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Lys p\u00e5 en t\u00e5get dag - Sygeplanter\" \/>\n<meta property=\"og:description\" content=\"En t\u00e5get dag, helt stille og lidt vemodig stemning \u2013 r\u00e5koldt, temperatur omkring frysepunktet. Ikke et vejr til drivhuse, og dog, ved 11-tiden var der 19 grader i drivhuset. Hvordan det? Forklaringen findes p\u00e5 lysm\u00e5leren, der styrer tilskudslyset, den st\u00e5r p\u00e5 samme v\u00e6rdi som i klart solskin. N\u00e5r solen skinner kommer energien koncentreret fra et ... 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Ikke et vejr til drivhuse, og dog, ved 11-tiden var der 19 grader i drivhuset. Hvordan det? Forklaringen findes p\u00e5 lysm\u00e5leren, der styrer tilskudslyset, den st\u00e5r p\u00e5 samme v\u00e6rdi som i klart solskin. N\u00e5r solen skinner kommer energien koncentreret fra et ... 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